Question

how do identify a given equation as oxidised or redoxed​

Answer 1

when addition of oxygen and removal of hydrogen occur and also increase in oxidation no. of the product formed then oxidation occur and when removal of oxygen and addition of hydrogen and also decrease in oxidation no. of product formed then reduction occur.

Answer 2

$\huge{\boxed{\mathcal{Hallo!}}}$

The substance that added with oxygen is said to be oxidized whereas removal of oxygen is called as reduction and the substance is said to be reduced.

So, we need to check the addition of oxygen or removal of oxygen to check the oxidation and reduction.